Confusing error message for incorrect struct variant field

[tomjakubowski]

enum Foo {
    Bar { x: () }
}

fn main() {
    let f = Foo::Bar { y: () };
}

Produces:

<anon>:6:24: 6:25 error: structure `Foo` has no field named `y`
<anon>:6     let f = Foo::Bar { y: () };
                                ^
error: aborting due to previous error
playpen: application terminated with error code 101

It would be more helpful to say that the struct variant Foo::Bar has no field named y.